Absorbing device for hydrolyzable fluoride in SF6

Abstract

The invention provides an absorbing device for hydrolyzable fluoride in SF6. The absorbing device comprises an absorption cell, a gas inlet pipe, a gas outlet pipe, a liquid inlet pipe and a waste liquid outlet pipe, wherein the upper end of the absorption cell is communicated with the gas outlet pipe, and the middle of the absorption cell is communicated with the gas inlet pipe. The absorbing device is characterized in that a six-way valve, a buffer tank, a gas circulating pump, a liquid circulating pump, a fluoride ion sensor and a jet aerator are added, wherein the input end of the jet aerator is communicated with a gas outlet end of the gas inlet pipe and the output end of the liquid circulating pump; the output end of the jet aerator is communicated with the absorption cell; the inlet of the six-way valve is connected with the outlet of an injection pump; an NaOH solution inlet and a drain port are further formed in the six-way valve; the input end of the liquid circulating pump is communicated with the bottom of the absorption cell through a solenoid valve; the gas inlet end of the gas circulating pump and the gas outlet end of the buffer tank are communicated with the gas outlet pipe and the gas inlet pipe correspondingly after the buffer tank and the gas circulating pump are connected in series; the fluoride ion sensor is mounted at the lower end in the absorption cell. The absorbing device can absorb fluoride sufficiently and rapidly and has excellent working performance.

Description

technical field [0001] The invention provides a hydrolyzable fluoride absorption device in sulfur hexafluoride gas, which belongs to the technical field of power system detection. technical background [0002] "Industrial Sulfur Hexafluoride" (GB / T 12022-2014) put forward requirements for the content of hydrolyzable fluoride in sulfur hexafluoride gas, and clarified the detection method of hydrolyzable fluoride; Determination of Compound Content" (DL / T918-2005) also specifies the measurement method and absorption device for the content of hydrolyzable fluoride in sulfur hexafluoride gas in detail, where the absorption device includes a glass absorption bottle, NaOH absorption liquid, absorption pipeline and bladder. The device adopts the vibration absorption method, which needs manual vibration for 1 minute every 5 minutes within 1 hour. In this method, the vibration strength of the operator determines the absorption effect, which leads to laborious absorption process, and ...

AI Technical Summary

Problems solved by technology

The device adopts the vibration absorption method, which needs manual vibration for 1 minute every 5 minutes within 1 hour. In this method, the vibration strength of the operator determines the absorption effect, which leads to laborious absorption process, and it is not easy to absorb completely, and the absorption effect is not good. Real-time judgment, resulting in large deviations in measurement results

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